Precision calculations for future e+e– colliders: targets and tools

Session

Talks and discussions: key physics questions and observables

Jun 7, 2022, 1:00 PM

4/3-006 - TH Conference Room (CERN)

2. Possibilities and precision goals at the Z pole

Patrick Janot (CERN)

6/7/22, 1:00 PM

The talk will review the physics potential of future lepton (e+e-) colliders at the Z pole, highlighting in particular the electroweak measurements that rely heavily on theory inputs, such as precision calculations. Primary examples are Z-pole measurements of EW parameters, as well as EW precision observables.

3. Status of theory calculations for Z-pole observables

Ayres Freitas

6/7/22, 2:00 PM

The talk will review the status of theory calculations for Z pole precision observables, and highlight the requirements to match the foreseen experimental precision. Moreover, it will compare the EW pseudo-observables and EFT-parameterisation approaches to carry out precision physics at the Z pole.

4. Possibilities and precision goals for QCD measurements

Stefan Kluth (Max Planck Society (DE))

6/7/22, 3:30 PM

The talk will review the physics potential of future lepton (e+e-) colliders at the Z pole, highlighting in particular the QCD measurements that rely heavily on theory inputs, such as precision calculations. Primary examples are Z-pole measurements of the strong coupling constant, hadronic decay rates of W/Z/tau, as well as (mulit-)jet measurements.

7. Initial state QED radiation aspects for future lepton colliders

Stefano Frixione (INFN)

6/8/22, 1:00 PM

The talk will discuss the latest progress in the description of QED corrections to the initial state, such as the application and limitations of collinear factorisation to beamstrahlung and YFS approaches. This talk highlights the necessary steps to achieve the precision demanded by future lepton collider experiments.

31. TH colloquium

6/8/22, 2:00 PM

https://indico.cern.ch/event/1124737/

13. Theory aspects in top-pair production

Martin Beneke (Technische Universitaet Muenchen (DE))

6/8/22, 3:30 PM

The talk will review the status of theory calculations for tt production at threshold energies and above at future lepton colliders, and highlight the requirements to match the foreseen experimental precision.

12. Experimental possibilities at and above the top-pair threshold

Frank Simon (Max-Planck-Institut fuer Physik)

6/8/22, 4:30 PM

The talk will review the physics potential of future lepton (e+e-) colliders at the tt threshold and above, highlighting in particular the experimental targets and those measurements that rely heavily on theory inputs, such as precision calculations.

8. Experimental constraints on Higgs properties

Jenny List (Deutsches Elektronen-Synchrotron (DE))

6/9/22, 1:00 PM

The talk will review the physics potential of future lepton (e+e-) colliders for Higgs production, e.g. Higgs-strahlung (e e -> HZ) and VBF (e e -> H v v (W W -> H)), highlighting in particular the experimental targets and those measurements that rely heavily on theory inputs, such as precision calculations.

9. Theory precision for Higgs observables

Li Lin Yang

6/9/22, 2:00 PM

The talk will review the status of theory calculations for H production, e.g. Higgs-strahlung (e e -> HZ) and VBF (e e -> H v v (W W -> H)), and Higgs decays at future lepton colliders, and highlight the requirements to match the foreseen experimental precision.

5. Non-perturbative aspects of QCD jet observables

Paolo Nason (Max Planck Society (DE))

6/9/22, 3:30 PM

The talk will review the current understanding of non-perturbative (linear) corrections to final state observables at lepton colliders, such as event shapes and jet rates. The prospects for new calculations needed at future e+e- machines should be highlighted in view of the accuracy required at these experiments.

6. Prospects for precision QCD jet calculations

Andrea Banfi (University of Sussex)

6/9/22, 4:30 PM

This talk will review calculations for multi-jet production in e+e- collisions; emphasizing the precision targets and prospects for new calculations needed at future colliders, and whether these can be achieved with state-of-the-art technology.

10. Precision electroweak physics above the Z pole

Graham Wilson

6/10/22, 1:00 PM

The talk will review the physics potential of future lepton (e+e-) colliders for EW precision physics above the Z pole, highlighting in particular the experimental targets and those measurements that rely heavily on theory inputs, such as precision calculations.

11. W properties at the pair-production threshold

Paolo Azzurri (Universita & INFN Pisa (IT))

6/10/22, 2:30 PM

This talk will review the physics potential of future lepton (e+e-) colliders for EW precision physics at the WW threshold, highlighting in particular the experimental targets for the measurement of the W-boson mass and width.

14. Summary of week 1

6/10/22, 3:30 PM